Which of the following is part of each molecule of mRNA?
a. Palindrome
b. Codon
c. Anticodon
d. Base pair

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Understand the structure and function of mRNA (messenger RNA). mRNA is a single-stranded molecule that carries genetic information from DNA to the ribosome for protein synthesis.

Recall that mRNA is composed of sequences of nucleotides arranged in groups of three called codons. Each codon specifies a particular amino acid during translation.

Recognize that a palindrome is a sequence that reads the same forwards and backwards, which is not a defining feature of mRNA molecules.

Note that an anticodon is a sequence found on tRNA (transfer RNA), not on mRNA. Anticodons pair with codons during translation.

Understand that base pairs refer to the hydrogen bonding between complementary nucleotides in double-stranded nucleic acids like DNA, but mRNA is single-stranded and does not have base pairs within its own molecule.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

mRNA Structure and Function

Messenger RNA (mRNA) is a single-stranded molecule that carries genetic information from DNA to the ribosome for protein synthesis. It contains sequences called codons, which are groups of three nucleotides that specify amino acids. Understanding mRNA's role is essential to identify its components.

Codon

A codon is a sequence of three nucleotides on mRNA that corresponds to a specific amino acid or a stop signal during translation. Each mRNA molecule is composed of multiple codons, making codons fundamental units for decoding genetic information into proteins.

Anticodon

An anticodon is a sequence of three nucleotides on transfer RNA (tRNA) that pairs complementarily with an mRNA codon during translation. Anticodons are not part of mRNA molecules but are crucial for matching amino acids to the correct codons.

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